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Questions tagged [taxonomy]

Questions on the classification of biological organisms, and the methods used for classifying them.

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Where does Actino- come from in the genus Actinomycetota?

This comment under Bacteria trapped in crystal inclusions found 'alive' after 50,000 years - what were they eating all that time? links to Quintana, Badillo ann Maldonado (2013) ...
uhoh's user avatar
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1 vote
1 answer
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Bug identification: Looks similar to a tiny silverfish

Found in NY outside on mailbox in a group of about 1000, it is about 1/8" long (not counting legs), with dozens of very hair-like legs. The front (?) of the bug appears to have larger leg/...
Xenalin's user avatar
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Generally, order and other higher taxonomic categories are identified based on the aggregates of characters. Please explain this

In a book it is written: Generally, order and other higher taxonomic categories are identified based on the aggregates of characters. What does it means? Every group is made only after observing ...
Amit Kumar's user avatar
1 vote
1 answer
75 views

KEGG map01100: Is this ectomycorrhizae or arbuscular mycorrhizae

Just as background mycorrhizae are fungi and split into two groups ectomycorrhizae and arbuscular mycorrhizae (AM). Taxonomically these fungi groups are very distinct. Ectomycorrhizae belong to the ...
M__'s user avatar
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Current Fern Taxonomy

In our school, the manual exhibits an outdated taxonomy as expressed by my teacher. We're following the Kingdom Plantae, Division Pterophyta, then divided into three Orders: Order Filicales Order ...
Jj Luntayan's user avatar
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1 answer
70 views

Who put Cephalopoda in Mollusca?

Cephalopods are considered mollusks due to homologies such as a shell, a muscular foot, and a mantle. But, they also have closed circulatory systems, two giant eyes, and eight prehensile legs. When ...
imrobert's user avatar
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There are plants and animal genera with the same Latin name. What are the scopes of uniqueness?

The genus Leptochilus occurs as a genus of wasps, and of a genus of ferns. What are the parts of the phylogenetic tree where uniqueness is required, and how many of them are they? (Where can I read ...
Falko's user avatar
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2 answers
153 views

Different hominid species or simply mutated humans?

I am not a biologist, however, I am curious as to how do evolutionary biologists classify a newly discovered hominid fossil as a separate species. If simply the bone structures are a criteria to ...
Dr. user44690's user avatar
1 vote
0 answers
173 views

Bruhathkayosaurus matleyi current status and size estimates

https://www.youtube.com/watch?v=BqVqW9A-6eo I watched this YouTube video about Bruhathkayosaurus matleyi and he basically makes three interesting assertions: The illium used to define ...
Triceratops's user avatar
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2 votes
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How can I find out where the holotype of a species is?

When I visit the Wikispecies page for Synapturanus zombie, it tells me where the holotype is, as does the paper which describes the species. But on visiting the page for Quercus gambelii, the holotype ...
imrobert's user avatar
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Are all unicellular eukaryotic organisms protists?

I know that the Protists are in Domain Eukarya, and that some protists are unicellular. Are there any other eukaryotic group of creatures that are not protists that are unicellular?
Kunj Parikh's user avatar
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23 views

Good source for current taxonomic keys

I’ve recently taken back up my interest in entomology and taxonomy. I used to be a biologist, but have long since moved to another field to make my way. I realize that all of my taxonomic keys are ...
box1763's user avatar
3 votes
1 answer
108 views

Why is tautonymy forbidden in botany?

From Merriam Webster: tautonym: a taxonomic binomial in which the generic name and specific epithet are alike and which is common in zoology especially to designate a typical form but is forbidden to ...
imrobert's user avatar
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Are bacteria members of Kingdom Monera or a separate domain by themselves?

The openstax biology textbook by Rice University says: "For example, after the common beginning of all life, scientists divide organisms into three large categories called domains: Bacteria, ...
Shoes's user avatar
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1 answer
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What is a fungus formally?

Fungi are immotile eukaryotes that do not have chloroplasts or perform photosynthesis. Yet there are other organisms that fit this definition that are not fungi, for example slime molds. What is the ...
imrobert's user avatar
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31 views

Are these algae responsible for concrete staining the same organism?

I am interested in studying the effects of algae that cause concrete staining on the walls in my city, particularly because this green growth is widespread in my country, Quito, Ecuador. Since I am ...
Adonis Cedeño's user avatar
0 votes
1 answer
46 views

Is there a comprehensive Taxonomical ID database?

I know there are resources that outline the latest taxa, such as wikispecies or Kew Gardens. However, I have not found any resources which detail the defining features of each taxa. Are there any ...
imrobert's user avatar
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1 answer
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Largest crinoid species

On the wikipedia page of crinoids (sea lilies and feather stars), one can find the following statement in the paragraph "Morphology": [...] and fossil species are known with 20 m (66 ft) ...
G. Blaickner's user avatar
1 vote
0 answers
42 views

Plants taxonomy: priority of names published in the same year

Article 11.3 of the International Code of Nomenclature for algae, fungi, and plants states that the earliest valid name with the same rank has the priority. The question is: if two names (or more...) ...
dandelion's user avatar
3 votes
2 answers
68 views

What is the origin of the name Crassostrea gigas (pacific oyster)?

Context I am looking for a source that reveals the origin of the name "Crasssostrea gigas". This is an oyster also known under the common names giant oyster, Japanese oyster, Pacific oyster ...
Saaru Lindestøkke's user avatar
0 votes
2 answers
237 views

Repetition of "Clade" in a taxonomic tree

Animals and plants are somtimes classified (organized) into a taxonomic tree data structure. The term "tree data-structure" comes from the fields of computer science and software development....
Samuel Muldoon's user avatar
14 votes
5 answers
2k views

Explaining "paraphyly" for the layperson?

I was a molecular biology major a while ago, but I never think I really understood cladistics TBH. Now reading about paraphyly, it shows this: In this phylogenetic tree [second image], the green ...
Lance's user avatar
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1 vote
1 answer
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Biological Key for Yard Weeds?

I'm tinkering with an idea for an app to identify yard weeds, just as a personal project. I've been looking for some sort of dichotomous key (ie, "Does it have fur?" "Does it have ...
TheIncrediblyStupidOne's user avatar
1 vote
1 answer
111 views

What are the W and DSM codes for the following bacteria referring to?

In this paper the following bacteria are listed: Bifidobacterium bifidum W23 (DSM 26331) Lactobacillus salivarius W24 (DSM 26403) Lactobacillus acidophilus W37 (DSM 26412) Lactobacillus casei W56 (...
Rob Simpson's user avatar
1 vote
0 answers
46 views

Taxonomy of viruses

There is a distinction drawn in the ICTV code between "valid names" and "accepted names". Valid names are those that are published and comply with the rules outlined in the code, ...
alephreish's user avatar
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3 votes
1 answer
153 views

If Myxozoa is animal, so what is really animal?

I read about the new discovered creature call Myxozoa and it say that Myxozoa is animal because of it possess cnidocysts like other cnidarian. But why doesn't it is a converge evolution ? Myxozoa ...
Ro Theory's user avatar
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0 answers
63 views

Why and who: named some fish "bashers" (African electrofish taxon "stonebasher")

Folklore question for itinerant elephantfish/electrofish experts happening to see this:Is any stonebasher fish named for a behavior related to bashing... something or some part of its anatomy against ...
Ayer AGG'TDd'E-A's user avatar
7 votes
0 answers
160 views

What are the differences and relationships between online plant taxonomy databases (POWO, WFO, WCSP, WCVP), and is one considered the most reliable?

Each of these databases has their own summary of their aims and process - but they rarely seem to mention each other in comparison. It's hard to figure out what differences or relationships exist ...
user71246's user avatar
1 vote
1 answer
237 views

Where to find all "authorities" for taxonomic names?

https://en.wikipedia.org/wiki/Author_citation_(botany) https://en.wikipedia.org/wiki/Author_citation_(zoology) I am using NCBI to get a fairly complete list of organisms and their taxonomic name. ...
Lance's user avatar
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0 votes
2 answers
65 views

Examples of subvarieties and forms in botany or other biological nomenclature?

So I found a fairly complex Rhododendron subgenus to subsection classification list, and despite there being ...
Lance's user avatar
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6 votes
1 answer
352 views

blackberry: what morphological features suggested the species epithet "bifrons"?

What morphological features suggested the epithet "bifrons" in Rubus bifrons? The scientific name of the familiar invading species "Himalayan Blackberry" (or "European ...
user78219's user avatar
1 vote
1 answer
100 views

Order of iNaturalist taxon levels

Purpose I want to take a collection of iNaturalist observations and build a tree diagram of the taxonomic levels that occur in that sample. Background Most of us have seen diagrams like this or like ...
Galen's user avatar
  • 1,055
9 votes
1 answer
402 views

Animal specific names with non-alphabetic characters

I'm part of a research team that investigates and documents native bee species, and we identified one of our Andrena specimens as A. w-scripta. With over ten years of experience in insect and ray-...
Vampire Fat's user avatar
1 vote
1 answer
133 views

What are the apomorphies of Streptophyta that delineate them from Chlorophyta in Viridiplantae?

I'm reading through Plant Systematics, 3rd Edition by Michael G. Simpson, and am having a hard time understanding the differences between the Chlorophytes and Streptophytes - discussed in Chapter 3: ...
John Luke Lusty's user avatar
0 votes
1 answer
152 views

Humans are Apes are Primates. But will they remain so?

Not a biologist here as you will propably be able to tell. I understand that throughout the tree of life each species at the leaves at the same time also belongs to all the parent categories up the ...
Marian Aldenhövel's user avatar
1 vote
0 answers
81 views

What organism is this? Repetitive, long thread, double spikes, ... (from a human sputum sample) [closed]

Link to video Collected in Portugal.
André Da Silva's user avatar
1 vote
0 answers
71 views

Identify grasshopper species

I found this grasshopper on a house door in central Italy. It did not move for the whole day. I can tell it's a grasshopper, however I am unable to determine the exact species. Size: ca. 6cm Feel free ...
Algae's user avatar
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0 votes
1 answer
59 views

What morphological traits can be used to diagnose members of the Eucalypteae?

I read the Wikipedia article on Eucalypteae and it doesn't actually say what these plants have in common. (I am now reading through https://bsapubs.onlinelibrary.wiley.com/doi/pdf/10.3732/ajb.1200025 ...
Step Start's user avatar
1 vote
1 answer
98 views

RNA sequencing and taxonomic analysis of gut microbiome

I've been searching for methods of RNA sequencing, and I always find that the step of rRNA removal is emphasized. However, in my research, I need to analyze both functional and taxonomic data from the ...
Noor Elhouda's user avatar
7 votes
2 answers
168 views

meaning of the name "Dictyostelium discoideum"

Dictyostelium discoideum is a well-known species of slime mould. Does anyone know what the name means? Here's my best guess. I found the 1935 article in which it was first described, but there doesn't ...
garrett mitchener's user avatar
1 vote
2 answers
137 views

What do you call members of a same species that show some morphological differences depending on their environment and/or diet?

What do you call members of a same species that exhibit a number of morphological differences depending on their environment and/or diet? I was thinking of the term "different phenotypes," ...
Serge Stroobandt's user avatar
1 vote
1 answer
38 views

Why is the author citation of Polypodium porosum (C. Presl) Mett.?

I would like to understand what constitutes a valid taxonomic description of a species in botany and by chance I encountered this example (which I otherwise know nothing about). Either Pyrrosia porosa ...
Vladimir F Героям слава's user avatar
2 votes
1 answer
38 views

Can DNA barcoding be employed to determine the order of an unidentified haematophagous parasite?

Given: a specimen of an unidentified, highly adapted, haematophagous parasite, perhaps a species nova, contaminated with mammal blood and tissue. DNA barcoding is readily used to identify cryptic ...
Serge Stroobandt's user avatar
1 vote
0 answers
77 views

Can you identify this caterpillar?

Hi on my walk home in may i found this larvae crawling on a small road between grass and fields. All the yellowish larvae i know are looking totally differend than this. The origin of this picture is ...
CoDa's user avatar
  • 103
1 vote
0 answers
22 views

What is the current accepted taxonomy of the Citrus genus, and how do common cultivated fruits fit into it?

I want to learn about the taxonomy of Citrus, and how cultivated fruits fit into it. I know that the history of cultivated citrus fruits is full of hybridisation and that the taxonomic classifications ...
Avery's user avatar
  • 11
0 votes
2 answers
173 views

Is the Orca a Whale?

I've read that "all dolphins are whales". I've also read that "the killer whale (orca) is a type of dolphin" and that "orcas are not whales, they're dolphins." But if the ...
Jossie Calderon's user avatar
4 votes
0 answers
141 views

References for historical momentum in asexual species definitions

For sexually reproducing organisms, the scope of a species is somewhat fixed by reproductive compatibility. However, this all collapses for organisms that exclusively reproduce asexually. Here, my ...
Wrzlprmft's user avatar
  • 585
1 vote
0 answers
33 views

Question about the use of Var. in different species

I just recently started studying Taxonomy and seem that I am the only one that got such question in the Internet...so pardon if this is a silly question...and my silly grammar because it is not my ...
RabbitTZY's user avatar
0 votes
0 answers
62 views

How can I learn botany/plant ID by myself?

I am interested in sources and methods regarding botany and plant ID, and being a self-taught person. Textbooks, sites etc. Thank you all in advance!
Ármin Horváth's user avatar
4 votes
1 answer
223 views

How to convert a genus name to a noun or adjective

Consider the crayfish family Cambaridae. As I understand it, this familial name can be turned into an English noun or adjective by changing the first letter to lower case and dropping the "ae.&...
crayman9's user avatar

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